Protolithic
a. 原始石器时代的
🗣️ 情景例句
I also have my daughter to consider.
我还要考虑我女儿。
I suppose it's an inconvenience for you to do this.
我推测对你来说做这件事情是很不方便的。
We have new methods like compensation trade and joint ventrue.
我们有补偿贸易和合资经营。